Yes, but they own Fallout. They do not - as far as I know - own Fading Suns. If they do own it, I stand corrected. If not, while they could raise the profile of any IP, they would have no desire to do so because it isn't a property they control and they could put that effort into their own properties.

Remember, they still only have one primary team. A Fading suns game (or whatever) is one less proven Fallout or Skyrim game that they own.